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An expert is a man who has made all the mistakes, which can be made, in a very narrow field. (Niels Bohr)


Nov
6
reviewed Close Let p be an odd prime number. Prove that
Nov
5
reviewed Leave Open Is 10 closer to infinity than 1?
Nov
4
reviewed Close Convergent Sequence Counterexample
Nov
4
reviewed Leave Open Before Abel's proof, what did they used for trying to find the general solution for quintics?
Nov
4
reviewed Close Local density on a 2D plane
Nov
4
reviewed Leave Open What is zero choose one?
Nov
4
reviewed Leave Open Why doesn't $1/x=0$ have any solution?
Nov
4
reviewed Approve suggested edit on Proof of the limit of a sequence
Nov
4
reviewed Close How to prove independence of two events
Nov
4
reviewed Close Two exercises regarding measures and outer measures
Nov
4
reviewed Close permutations rolling die 6 times
Nov
4
reviewed No Action Needed Inner Product Space (Continuously Differentiable Functions)
Nov
4
reviewed No Action Needed Assume $ 0<x<1 $, show that $(1+x)log^2(1+x)<x^2$
Nov
4
reviewed Approve suggested edit on Show that if $x>0$, then $\ln(x)\geq 1-\frac{1}{x} $
Nov
4
reviewed Approve suggested edit on 1000 people and the number 105
Nov
4
reviewed Close $Y^\varnothing$ has one element; if $X \ne \varnothing$, then $\varnothing^X = \varnothing$
Nov
4
reviewed Leave Open Functions between Sets of different Cardinality
Nov
4
reviewed Reject suggested edit on Can somebody help me to understand this? (Baire Category Theorem)
Nov
4
reviewed Approve suggested edit on show $\Bbb Z_6 \cong \Bbb Z_3 \times \Bbb Z_2 $.
Nov
4
reviewed No Action Needed How to show that $\frac{f}{g}$ is measurable